Question

what was an unintended effect of the sinking of the lusitania?
○ nations turned against germany because of german tactics that caused the deaths of innocent travelers.
○ the allies realized unrestricted bombing would turn nations against them, so they developed new strategies.
○ both germany and the allies became suspicious of passenger ships, which often carried war supplies.
○ the united states sent diplomats to europe to negotiate an end to the fighting before more lives were lost.

Explanation:

The sinking of the Lusitania involved a German U - boat attacking a passenger liner, killing many innocent civilians (including Americans). This led to international outrage, and nations turned against Germany for using such tactics. The second option is incorrect as unrestricted submarine warfare (not bombing) was the German tactic, and the Allies didn't develop strategies in this context from this event. The third option is wrong as the suspicion of passenger ships carrying war supplies was more of a German - Allied dynamic related to submarine warfare rules, not a direct unintended effect of the Lusitania's sinking. The fourth option is incorrect as the US didn't send diplomats to negotiate an end to fighting right after; instead, this event contributed to US anti - German sentiment and eventually US entry into the war.

Answer:

A. Nations turned against Germany because of German tactics that caused the deaths of innocent travelers.